如何防止在else if语句中重复赋值？

Question

以下功能验证一个表单字段：

validateFields() { 
    let invalidFields = [] 
    utils.eachDeep(this.schema, field => { 
    if (!field.validation) return // don't validate 
    else if (field.validation.isRequired && !field.value) { 
     field.errorMessage = 'Required field error' 
     invalidFields.push(field) 
    } else if (field.validation.minLength && field.value.length < field.validation.minLength) { 
     field.errorMessage = 'Minimum length error' 
     invalidFields.push(field) 
    } else { 
     // no errors 
     field.errorMessage = '' 
    } 
    }) 

    invalidFields.length > 0 
    ? this.isFormValid = false 
    : this.isFormValid = true 
} 

正如你可以看到我在每一个else if语句重复invalidFields.push(field)。我怎样才能防止这一点？

Answer 1

，如果你只是想删除其他内推（）如果块，你可以这样做：

validateFields() { 
    let invalidFields = [] 
    utils.eachDeep(this.schema, field => { 
    field.errorMessage = ''; 

    if (!field.validation) return // don't validate 
    else if (field.validation.isRequired && !field.value) { 
     field.errorMessage = 'Required field error' 
    } else if (field.validation.minLength && field.value.length < field.validation.minLength) { 
     field.errorMessage = 'Minimum length error' 
    } 
    if(field.errorMessage){ 
     invalidFields.push(field) 
    } 
    }) 

    invalidFields.length > 0 
    ? this.isFormValid = false 
    : this.isFormValid = true 
}